IEEE frequency bands: Difference between revisions
imported>Howard C. Berkowitz (New page: {{subpages}} The Institute for Electrical and Electronic Engineers (IEEE) has defined a system of '''IEEE frequency bands''' for electromagnetic frequencies used for radio and [[ra...) |
imported>Howard C. Berkowitz (Fixed frequency assignments in the upper rranges) |
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The [[Institute for Electrical and Electronic Engineers]] (IEEE) has defined a system of '''IEEE frequency bands''' for electromagnetic frequencies used for [[radio]] and [[radar]]. | The [[Institute for Electrical and Electronic Engineers]] (IEEE) has defined as standard IEEE Standard 521-1984, a system of '''IEEE frequency bands''' for electromagnetic frequencies used for [[radio]] and [[radar]]. There is no question that the names of the bands are confusing, and the history is obscure. <ref name=uwHist>{{citation | ||
| url = http://www.microwaves101.com/encyclopedia/letterbands.cfm | |||
| chapter = Frequency letter bands | |||
| date = 25 April 2008 | |||
| title = Microwave Encyclopedia | |||
| journal = Microwaves101}}</ref> | |||
The terminology is used widely for radar, especially in civilian systems. The [[EU-NATO-US frequency bands]] for a nomenclature that works well in fine-grained radar band discussion, especially in [[electronic warfare]]. | |||
The IEEE system is widely used, but lacks some fine granularity needed for discussing detailed radar examples, and only starts at 1 GHz; the designations below for the lower frequencies come from [[ITU frequency bands]]. The ITU designations are more useful when discussing radio. | |||
{| class="wikitable" | {| class="wikitable" | ||
| Line 39: | Line 46: | ||
| '''K''' band | | '''K''' band | ||
|- | |- | ||
| | | 27-40 GHz | ||
| '''K<sub>a</sub>''' band | | '''K<sub>a</sub>''' band | ||
|- | |- | ||
| | | 40-75 GHz | ||
| '''V''' band | | '''V''' band | ||
|- | |- | ||
| | | 75 to 110 GHz | ||
| '''W''' band | | '''W''' band | ||
|} | |} | ||
==References== | |||
{{reflist}} | |||
Revision as of 18:15, 5 August 2008
The Institute for Electrical and Electronic Engineers (IEEE) has defined as standard IEEE Standard 521-1984, a system of IEEE frequency bands for electromagnetic frequencies used for radio and radar. There is no question that the names of the bands are confusing, and the history is obscure. [1]
The terminology is used widely for radar, especially in civilian systems. The EU-NATO-US frequency bands for a nomenclature that works well in fine-grained radar band discussion, especially in electronic warfare.
The IEEE system is widely used, but lacks some fine granularity needed for discussing detailed radar examples, and only starts at 1 GHz; the designations below for the lower frequencies come from ITU frequency bands. The ITU designations are more useful when discussing radio.
| Frequency range | IEEE band |
|---|---|
| 300KHz-3 MHz | MF |
| 3-30 MHz | HF |
| 30-300 MHz | VHF |
| 300 MHz -3 GHz* | UHF |
| 1-2 GHz | L band |
| 2-4 GHz | S band |
| 4-8 GHz | C band |
| 8-12 GHz | X band |
| 12-18 GHz | Ku band |
| 18-26 GHz | K band |
| 27-40 GHz | Ka band |
| 40-75 GHz | V band |
| 75 to 110 GHz | W band |
References
- ↑ , Frequency letter bands"Microwave Encyclopedia", Microwaves101, 25 April 2008